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JEE Advanced levelSingle correct optionDifficulty 3 of 3hx271

The compound shown is stirred with aqueous at room temperature and the mixture is then acidified with dilute . Which structure is the final organic product?

  1. AStructure A
  2. BStructure B
  3. CStructure C
  4. DStructure D

Answer: B

Three nitro groups, two ortho and one para to chlorine, activate nucleophilic aromatic substitution so strongly that hydrolysis occurs at room temperature. The initial product is sodium 2,4,6-trinitrophenoxide, and acidification gives 2,4,6-trinitrophenol (picric acid). The dinitrophenol would need loss of a nitro group, the amine needs ammonia, and trinitrobenzene needs a reducing agent.
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